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<p>Log session start time Sun Mar 07 02:52:55 CST 2021</p><p></p>

<table cellspacing="0">
<tr class="header">
<td class="Level">Level</td>
<td class="Date">Date</td>
<td class="Message">Message</td>
<td class="MethodOfCaller">MethodOfCaller</td>
<td class="FileOfCaller">FileOfCaller</td>
<td class="LineOfCaller">LineOfCaller</td>
</tr>


<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:51,174</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:55,345</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 02:52:55,787</td>
<td class="Message">{dataSource-1} failContinuous is true</td>
<td class="MethodOfCaller">setFailContinuous</td>
<td class="FileOfCaller">DruidAbstractDataSource.java</td>
<td class="LineOfCaller">1791</td>
</tr>

<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:56,287</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:56,791</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:57,294</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:57,796</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:58,432</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:58,935</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:59,441</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:52:59,947</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:53:00,450</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:53:00,954</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:53:01,458</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:53:01,960</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 02:53:02,464</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:52,554</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:53,056</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:53,560</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:54,496</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:55,528</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:56,029</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:56,532</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:58,192</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:58,700</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:59,212</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:36:59,721</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:00,223</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:00,854</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:01,697</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:02,209</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:02,717</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:03,928</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:04,441</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:04,998</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 13:37:05,185</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:05,514</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 13:37:05,948</td>
<td class="Message">【websocket消息】有新的连接，总数为:2</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 13:37:05,960</td>
<td class="Message">【websocket消息】有新的连接，总数为:3</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:06,028</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:06,854</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:07,552</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:08,057</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:08,569</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:09,085</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:09,599</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:10,315</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:10,829</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:11,333</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:11,842</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:12,348</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:12,861</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:13,375</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:13,888</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:14,401</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:14,919</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:15,434</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:15,941</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:16,451</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:16,959</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:17,470</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:18,137</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:18,649</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:19,165</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:19,674</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:20,185</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:20,700</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:21,215</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:21,725</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:22,230</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:22,741</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:23,257</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:23,773</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:24,285</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:24,793</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:25,498</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:26,014</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:26,529</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:27,040</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:27,556</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:28,503</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:29,244</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:29,749</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:30,262</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:30,777</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:31,293</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:31,848</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:32,353</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:32,868</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:33,376</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:33,879</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:34,392</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:34,904</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:35,432</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:35,947</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:36,463</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:36,967</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:37,485</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:37,987</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:38,492</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:39,006</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:39,522</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:40,027</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:40,592</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="warn odd">
<td class="Level">WARN</td>
<td class="Date">2021-03-07 13:37:40,697</td>
<td class="Message">get connection timeout retry : 1</td>
<td class="MethodOfCaller">getConnectionDirect</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">1414</td>
</tr>

<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:41,107</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:41,623</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:42,133</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:42,642</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:43,159</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:43,662</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:44,168</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:44,683</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:45,199</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:45,714</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:46,244</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:46,756</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:47,262</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:47,768</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:48,279</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:48,788</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:49,294</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:49,802</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:50,310</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:50,822</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:51,327</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:51,833</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:52,336</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:52,858</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:53,367</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:53,926</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:54,445</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="warn odd">
<td class="Level">WARN</td>
<td class="Date">2021-03-07 13:37:54,937</td>
<td class="Message">get connection timeout retry : 1</td>
<td class="MethodOfCaller">getConnectionDirect</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">1414</td>
</tr>

<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:54,948</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:55,496</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:56,012</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:56,528</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:57,035</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:57,543</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="warn even">
<td class="Level">WARN</td>
<td class="Date">2021-03-07 13:37:57,840</td>
<td class="Message">get connection timeout retry : 1</td>
<td class="MethodOfCaller">getConnectionDirect</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">1414</td>
</tr>

<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:58,074</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:58,587</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:59,103</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:37:59,636</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:00,152</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:00,654</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:01,158</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:01,675</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:02,196</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:02,701</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:03,207</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:03,724</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:04,230</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:04,735</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:05,242</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:05,759</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:06,271</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:06,782</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:07,289</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:07,820</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:08,336</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:08,848</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:09,439</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:09,955</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:10,470</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:10,984</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:11,495</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:12,004</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:12,516</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:13,022</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:13,546</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 13:38:14,062</td>
<td class="Message">create connection SQLException, url: jdbc:mysql://mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com:3306/b_win_solitaire?characterEncoding=UTF-8&amp;useUnicode=true&amp;useSSL=false&amp;tinyInt1isBit=false&amp;allowPublicKeyRetrieval=true&amp;serverTimezone=Asia/Shanghai, errorCode 0, state 08S01</td>
<td class="MethodOfCaller">run</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2781</td>
</tr>
<tr><td class="Exception" colspan="6">com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.&lt;init&gt;(ConnectionImpl.java:456)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterEventAdapter.connection_connect(FilterEventAdapter.java:38)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterAdapter.connection_connect(FilterAdapter.java:787)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1646)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1710)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2779)
<br />Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedConstructorAccessor114.newInstance(Unknown Source)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 14 common frames omitted
<br />Caused by: java.net.UnknownHostException: mysql-internet-cn-east-2-2abb59d6c8e14bc5.rds.jdcloud.com
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1192)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.net.InetAddress.getAllByName(InetAddress.java:1126)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:132)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 17 common frames omitted
</td></tr>
<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 13:38:14,959</td>
<td class="Message">{dataSource-1} failContinuous is false</td>
<td class="MethodOfCaller">setFailContinuous</td>
<td class="FileOfCaller">DruidAbstractDataSource.java</td>
<td class="LineOfCaller">1796</td>
</tr>

<tr class="warn even">
<td class="Level">WARN</td>
<td class="Date">2021-03-07 13:38:15,086</td>
<td class="Message">This scheduler instance (DESKTOP-0SOAGH61615023603155) is still active but was recovered by another instance in the cluster.  This may cause inconsistent behavior.</td>
<td class="MethodOfCaller">findFailedInstances</td>
<td class="FileOfCaller">JobStoreSupport.java</td>
<td class="LineOfCaller">3411</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 13:38:25,276</td>
<td class="Message">ClusterManager: detected 1 failed or restarted instances.</td>
<td class="MethodOfCaller">logWarnIfNonZero</td>
<td class="FileOfCaller">JobStoreSupport.java</td>
<td class="LineOfCaller">3644</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 13:38:25,276</td>
<td class="Message">ClusterManager: Scanning for instance &quot;WIN7E-20180402B1614934221450&quot;&#39;s failed in-progress jobs.</td>
<td class="MethodOfCaller">clusterRecover</td>
<td class="FileOfCaller">JobStoreSupport.java</td>
<td class="LineOfCaller">3503</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:08:46,279</td>
<td class="Message">Scheduler MyScheduler_$_DESKTOP-0SOAGH61615023603155 paused.</td>
<td class="MethodOfCaller">standby</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">585</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:08:53,447</td>
<td class="Message">【websocket消息】连接断开，总数为:2</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:08:53,559</td>
<td class="Message">【websocket消息】连接断开，总数为:1</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:08:53,670</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:08:59,954</td>
<td class="Message">Shutting down ExecutorService &#39;applicationTaskExecutor&#39;</td>
<td class="MethodOfCaller">shutdown</td>
<td class="FileOfCaller">ExecutorConfigurationSupport.java</td>
<td class="LineOfCaller">218</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:02,023</td>
<td class="Message">Shutting down Quartz Scheduler</td>
<td class="MethodOfCaller">destroy</td>
<td class="FileOfCaller">SchedulerFactoryBean.java</td>
<td class="LineOfCaller">845</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:02,023</td>
<td class="Message">Scheduler MyScheduler_$_DESKTOP-0SOAGH61615023603155 shutting down.</td>
<td class="MethodOfCaller">shutdown</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">666</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:02,023</td>
<td class="Message">Scheduler MyScheduler_$_DESKTOP-0SOAGH61615023603155 paused.</td>
<td class="MethodOfCaller">standby</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">585</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:02,309</td>
<td class="Message">Scheduler MyScheduler_$_DESKTOP-0SOAGH61615023603155 shutdown complete.</td>
<td class="MethodOfCaller">shutdown</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">740</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:03,280</td>
<td class="Message">dynamic-datasource start closing ....</td>
<td class="MethodOfCaller">destroy</td>
<td class="FileOfCaller">DynamicRoutingDataSource.java</td>
<td class="LineOfCaller">217</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:04,696</td>
<td class="Message">{dataSource-1} closing ...</td>
<td class="MethodOfCaller">close</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2029</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:05,386</td>
<td class="Message">{dataSource-1} closed</td>
<td class="MethodOfCaller">close</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">2101</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:09:05,434</td>
<td class="Message">dynamic-datasource all closed success,bye</td>
<td class="MethodOfCaller">destroy</td>
<td class="FileOfCaller">DynamicRoutingDataSource.java</td>
<td class="LineOfCaller">221</td>
</tr>
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<style  type="text/css">
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TD.Time, TD.Date { text-align: right; font-family: courier, monospace; font-size: smaller; }
TD.Thread { text-align: left; }
TD.Level { text-align: right; }
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  </head>
<body>
<hr/>
<p>Log session start time Sun Mar 07 14:33:33 CST 2021</p><p></p>

<table cellspacing="0">
<tr class="header">
<td class="Level">Level</td>
<td class="Date">Date</td>
<td class="Message">Message</td>
<td class="MethodOfCaller">MethodOfCaller</td>
<td class="FileOfCaller">FileOfCaller</td>
<td class="LineOfCaller">LineOfCaller</td>
</tr>


<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:33,231</td>
<td class="Message">HV000001: Hibernate Validator 6.1.6.Final</td>
<td class="MethodOfCaller">&lt;clinit&gt;</td>
<td class="FileOfCaller">Version.java</td>
<td class="LineOfCaller">21</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:33,259</td>
<td class="Message">Starting JeecgSystemApplication on DESKTOP-0SOAGH6 with PID 14132 (D:\SmsyIDEWorkSpace\qy_smsy\jeecg-boot-module-system\target\classes started by tft950321 in D:\SmsyIDEWorkSpace\qy_smsy)</td>
<td class="MethodOfCaller">logStarting</td>
<td class="FileOfCaller">StartupInfoLogger.java</td>
<td class="LineOfCaller">55</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:33,259</td>
<td class="Message">The following profiles are active: dev</td>
<td class="MethodOfCaller">logStartupProfileInfo</td>
<td class="FileOfCaller">SpringApplication.java</td>
<td class="LineOfCaller">655</td>
</tr>

<tr class="warn odd">
<td class="Level">WARN</td>
<td class="Date">2021-03-07 14:33:34,024</td>
<td class="Message">For Jackson Kotlin classes support please add &quot;com.fasterxml.jackson.module:jackson-module-kotlin&quot; to the classpath</td>
<td class="MethodOfCaller">warn</td>
<td class="FileOfCaller">CompositeLog.java</td>
<td class="LineOfCaller">127</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:41,179</td>
<td class="Message">Multiple Spring Data modules found, entering strict repository configuration mode!</td>
<td class="MethodOfCaller">multipleStoresDetected</td>
<td class="FileOfCaller">RepositoryConfigurationDelegate.java</td>
<td class="LineOfCaller">249</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:41,183</td>
<td class="Message">Bootstrapping Spring Data Redis repositories in DEFAULT mode.</td>
<td class="MethodOfCaller">registerRepositoriesIn</td>
<td class="FileOfCaller">RepositoryConfigurationDelegate.java</td>
<td class="LineOfCaller">127</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:41,466</td>
<td class="Message">Finished Spring Data repository scanning in 258ms. Found 0 Redis repository interfaces.</td>
<td class="MethodOfCaller">registerRepositoriesIn</td>
<td class="FileOfCaller">RepositoryConfigurationDelegate.java</td>
<td class="LineOfCaller">187</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:42,005</td>
<td class="Message">Bean &#39;spring.redis-org.springframework.boot.autoconfigure.data.redis.RedisProperties&#39; of type [org.springframework.boot.autoconfigure.data.redis.RedisProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:42,010</td>
<td class="Message">Bean &#39;org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration&#39; of type [org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:42,138</td>
<td class="Message">Bean &#39;lettuceClientResources&#39; of type [io.lettuce.core.resource.DefaultClientResources] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:42,239</td>
<td class="Message">Bean &#39;redisConnectionFactory&#39; of type [org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:42,241</td>
<td class="Message">Bean &#39;shiroConfig&#39; of type [org.jeecg.config.shiro.ShiroConfig$$EnhancerBySpringCGLIB$$360d2627] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:42,284</td>
<td class="Message">Bean &#39;shiroRealm&#39; of type [org.jeecg.config.shiro.ShiroRealm] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,392</td>
<td class="Message">===============(1)创建缓存管理器RedisCacheManager</td>
<td class="MethodOfCaller">redisCacheManager</td>
<td class="FileOfCaller">ShiroConfig.java</td>
<td class="LineOfCaller">208</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,395</td>
<td class="Message">===============(2)创建RedisManager,连接Redis..</td>
<td class="MethodOfCaller">redisManager</td>
<td class="FileOfCaller">ShiroConfig.java</td>
<td class="LineOfCaller">226</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,400</td>
<td class="Message">Bean &#39;redisManager&#39; of type [org.crazycake.shiro.RedisManager] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,407</td>
<td class="Message">Bean &#39;securityManager&#39; of type [org.apache.shiro.web.mgt.DefaultWebSecurityManager] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,500</td>
<td class="Message">Bean &#39;authorizationAttributeSourceAdvisor&#39; of type [org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,777</td>
<td class="Message">Bean &#39;spring.datasource.dynamic-com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceProperties&#39; of type [com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,784</td>
<td class="Message">Bean &#39;com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceAutoConfiguration&#39; of type [com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceAutoConfiguration$$EnhancerBySpringCGLIB$$405f4eff] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,796</td>
<td class="Message">Bean &#39;dsProcessor&#39; of type [com.baomidou.dynamic.datasource.processor.DsHeaderProcessor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,815</td>
<td class="Message">Bean &#39;redisConfig&#39; of type [org.jeecg.config.redis.RedisConfig$$EnhancerBySpringCGLIB$$acf6153b] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,860</td>
<td class="Message">Bean &#39;org.apache.shiro.spring.boot.autoconfigure.ShiroBeanAutoConfiguration&#39; of type [org.apache.shiro.spring.boot.autoconfigure.ShiroBeanAutoConfiguration$$EnhancerBySpringCGLIB$$e9e9bbde] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:43,865</td>
<td class="Message">Bean &#39;eventBus&#39; of type [org.apache.shiro.event.support.DefaultEventBus] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)</td>
<td class="MethodOfCaller">postProcessAfterInitialization</td>
<td class="FileOfCaller">PostProcessorRegistrationDelegate.java</td>
<td class="LineOfCaller">335</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:44,516</td>
<td class="Message">Tomcat initialized with port(s): 8080 (http)</td>
<td class="MethodOfCaller">initialize</td>
<td class="FileOfCaller">TomcatWebServer.java</td>
<td class="LineOfCaller">108</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:44,528</td>
<td class="Message">Initializing ProtocolHandler [&quot;http-nio-8080&quot;]</td>
<td class="MethodOfCaller">log</td>
<td class="FileOfCaller">DirectJDKLog.java</td>
<td class="LineOfCaller">173</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:44,529</td>
<td class="Message">Starting service [Tomcat]</td>
<td class="MethodOfCaller">log</td>
<td class="FileOfCaller">DirectJDKLog.java</td>
<td class="LineOfCaller">173</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:44,529</td>
<td class="Message">Starting Servlet engine: [Apache Tomcat/9.0.39]</td>
<td class="MethodOfCaller">log</td>
<td class="FileOfCaller">DirectJDKLog.java</td>
<td class="LineOfCaller">173</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:45,986</td>
<td class="Message">Initializing Spring embedded WebApplicationContext</td>
<td class="MethodOfCaller">log</td>
<td class="FileOfCaller">DirectJDKLog.java</td>
<td class="LineOfCaller">173</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:45,987</td>
<td class="Message">Root WebApplicationContext: initialization completed in 12661 ms</td>
<td class="MethodOfCaller">prepareWebApplicationContext</td>
<td class="FileOfCaller">ServletWebServerApplicationContext.java</td>
<td class="LineOfCaller">285</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:48,648</td>
<td class="Message">{dataSource-1,master} inited</td>
<td class="MethodOfCaller">init</td>
<td class="FileOfCaller">DruidDataSource.java</td>
<td class="LineOfCaller">994</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:48,650</td>
<td class="Message">dynamic-datasource - load a datasource named [master] success</td>
<td class="MethodOfCaller">addDataSource</td>
<td class="FileOfCaller">DynamicRoutingDataSource.java</td>
<td class="LineOfCaller">132</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:48,650</td>
<td class="Message">dynamic-datasource initial loaded [1] datasource,primary datasource named [master]</td>
<td class="MethodOfCaller">afterPropertiesSet</td>
<td class="FileOfCaller">DynamicRoutingDataSource.java</td>
<td class="LineOfCaller">237</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:52,947</td>
<td class="Message"> --- redis config init --- </td>
<td class="MethodOfCaller">starterRedisTemplate</td>
<td class="FileOfCaller">RedisConfiguration.java</td>
<td class="LineOfCaller">45</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:53,714</td>
<td class="Message"> --- redis config init --- </td>
<td class="MethodOfCaller">redisTemplate</td>
<td class="FileOfCaller">RedisConfig.java</td>
<td class="LineOfCaller">66</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,638</td>
<td class="Message">Using default implementation for ThreadExecutor</td>
<td class="MethodOfCaller">instantiate</td>
<td class="FileOfCaller">StdSchedulerFactory.java</td>
<td class="LineOfCaller">1220</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,641</td>
<td class="Message">Job execution threads will use class loader of thread: main</td>
<td class="MethodOfCaller">initialize</td>
<td class="FileOfCaller">SimpleThreadPool.java</td>
<td class="LineOfCaller">268</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,654</td>
<td class="Message">Initialized Scheduler Signaller of type: class org.quartz.core.SchedulerSignalerImpl</td>
<td class="MethodOfCaller">&lt;init&gt;</td>
<td class="FileOfCaller">SchedulerSignalerImpl.java</td>
<td class="LineOfCaller">61</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,655</td>
<td class="Message">Quartz Scheduler v.2.3.2 created.</td>
<td class="MethodOfCaller">&lt;init&gt;</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">229</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,661</td>
<td class="Message">Using db table-based data access locking (synchronization).</td>
<td class="MethodOfCaller">initialize</td>
<td class="FileOfCaller">JobStoreSupport.java</td>
<td class="LineOfCaller">672</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,664</td>
<td class="Message">JobStoreCMT initialized.</td>
<td class="MethodOfCaller">initialize</td>
<td class="FileOfCaller">JobStoreCMT.java</td>
<td class="LineOfCaller">145</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,667</td>
<td class="Message">Scheduler meta-data: Quartz Scheduler (v2.3.2) &#39;MyScheduler&#39; with instanceId &#39;DESKTOP-0SOAGH61615098834640&#39;
  Scheduler class: &#39;org.quartz.core.QuartzScheduler&#39; - running locally.
  NOT STARTED.
  Currently in standby mode.
  Number of jobs executed: 0
  Using thread pool &#39;org.quartz.simpl.SimpleThreadPool&#39; - with 10 threads.
  Using job-store &#39;org.springframework.scheduling.quartz.LocalDataSourceJobStore&#39; - which supports persistence. and is clustered.
</td>
<td class="MethodOfCaller">initialize</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">294</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,667</td>
<td class="Message">Quartz scheduler &#39;MyScheduler&#39; initialized from an externally provided properties instance.</td>
<td class="MethodOfCaller">instantiate</td>
<td class="FileOfCaller">StdSchedulerFactory.java</td>
<td class="LineOfCaller">1374</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,667</td>
<td class="Message">Quartz scheduler version: 2.3.2</td>
<td class="MethodOfCaller">instantiate</td>
<td class="FileOfCaller">StdSchedulerFactory.java</td>
<td class="LineOfCaller">1378</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:54,667</td>
<td class="Message">JobFactory set to: org.springframework.scheduling.quartz.SpringBeanJobFactory@6d7d0946</td>
<td class="MethodOfCaller">setJobFactory</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">2293</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:57,029</td>
<td class="Message"> --- Init JimuReport Config --- </td>
<td class="MethodOfCaller">afterPropertiesSet</td>
<td class="FileOfCaller">JimuReportConfiguration.java</td>
<td class="LineOfCaller">45</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:58,120</td>
<td class="Message">Exposing 2 endpoint(s) beneath base path &#39;/actuator&#39;</td>
<td class="MethodOfCaller">&lt;init&gt;</td>
<td class="FileOfCaller">EndpointLinksResolver.java</td>
<td class="LineOfCaller">58</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:58,310</td>
<td class="Message">Mapped URL path [/v2/api-docs] onto method [springfox.documentation.swagger2.web.Swagger2Controller#getDocumentation(String, HttpServletRequest)]</td>
<td class="MethodOfCaller">initHandlerMethods</td>
<td class="FileOfCaller">PropertySourcedRequestMappingHandlerMapping.java</td>
<td class="LineOfCaller">69</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:58,614</td>
<td class="Message">Initializing ExecutorService &#39;applicationTaskExecutor&#39;</td>
<td class="MethodOfCaller">initialize</td>
<td class="FileOfCaller">ExecutorConfigurationSupport.java</td>
<td class="LineOfCaller">181</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,360</td>
<td class="Message">Starting ProtocolHandler [&quot;http-nio-8080&quot;]</td>
<td class="MethodOfCaller">log</td>
<td class="FileOfCaller">DirectJDKLog.java</td>
<td class="LineOfCaller">173</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,392</td>
<td class="Message">Tomcat started on port(s): 8080 (http) with context path &#39;/jeecg-boot&#39;</td>
<td class="MethodOfCaller">start</td>
<td class="FileOfCaller">TomcatWebServer.java</td>
<td class="LineOfCaller">220</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,393</td>
<td class="Message">Context refreshed</td>
<td class="MethodOfCaller">start</td>
<td class="FileOfCaller">DocumentationPluginsBootstrapper.java</td>
<td class="LineOfCaller">160</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,417</td>
<td class="Message">Found 1 custom documentation plugin(s)</td>
<td class="MethodOfCaller">start</td>
<td class="FileOfCaller">DocumentationPluginsBootstrapper.java</td>
<td class="LineOfCaller">163</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,691</td>
<td class="Message">Scanning for api listing references</td>
<td class="MethodOfCaller">scan</td>
<td class="FileOfCaller">ApiListingReferenceScanner.java</td>
<td class="LineOfCaller">41</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,699</td>
<td class="Message">Initializing Spring DispatcherServlet &#39;dispatcherServlet&#39;</td>
<td class="MethodOfCaller">log</td>
<td class="FileOfCaller">DirectJDKLog.java</td>
<td class="LineOfCaller">173</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,699</td>
<td class="Message">Initializing Servlet &#39;dispatcherServlet&#39;</td>
<td class="MethodOfCaller">initServletBean</td>
<td class="FileOfCaller">FrameworkServlet.java</td>
<td class="LineOfCaller">525</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,717</td>
<td class="Message">Completed initialization in 17 ms</td>
<td class="MethodOfCaller">initServletBean</td>
<td class="FileOfCaller">FrameworkServlet.java</td>
<td class="LineOfCaller">547</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,869</td>
<td class="Message">【websocket消息】有新的连接，总数为:2</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,869</td>
<td class="Message">【websocket消息】有新的连接，总数为:2</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,994</td>
<td class="Message">Generating unique operation named: addUsingPOST_1</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,996</td>
<td class="Message">Generating unique operation named: deleteUsingDELETE_1</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:33:59,998</td>
<td class="Message">Generating unique operation named: deleteBatchUsingDELETE_1</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,001</td>
<td class="Message">Generating unique operation named: editUsingPUT_1</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,004</td>
<td class="Message">Generating unique operation named: queryByIdUsingGET_1</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,024</td>
<td class="Message">Generating unique operation named: addUsingPOST_2</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,027</td>
<td class="Message">Generating unique operation named: deleteUsingDELETE_2</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,030</td>
<td class="Message">Generating unique operation named: deleteBatchUsingDELETE_2</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,033</td>
<td class="Message">Generating unique operation named: editUsingPUT_2</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,035</td>
<td class="Message">Generating unique operation named: queryByIdUsingGET_2</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,041</td>
<td class="Message">Generating unique operation named: queryPageListUsingGET_1</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,054</td>
<td class="Message">Generating unique operation named: addUsingPOST_3</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,057</td>
<td class="Message">Generating unique operation named: deleteUsingDELETE_3</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,059</td>
<td class="Message">Generating unique operation named: deleteBatchUsingDELETE_3</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,062</td>
<td class="Message">Generating unique operation named: editUsingPUT_3</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,065</td>
<td class="Message">Generating unique operation named: queryByIdUsingGET_3</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,075</td>
<td class="Message">Generating unique operation named: queryPageListUsingGET_2</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,081</td>
<td class="Message">Generating unique operation named: addUsingPOST_4</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,083</td>
<td class="Message">Generating unique operation named: deleteUsingDELETE_4</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,084</td>
<td class="Message">Generating unique operation named: deleteBatchUsingDELETE_4</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,086</td>
<td class="Message">Generating unique operation named: editUsingPUT_4</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,088</td>
<td class="Message">Generating unique operation named: queryByIdUsingGET_4</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,094</td>
<td class="Message">Generating unique operation named: queryPageListUsingGET_3</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,103</td>
<td class="Message">Generating unique operation named: addUsingPOST_5</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,104</td>
<td class="Message">Generating unique operation named: deleteUsingDELETE_5</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,106</td>
<td class="Message">Generating unique operation named: deleteBatchUsingDELETE_5</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,107</td>
<td class="Message">Generating unique operation named: editUsingPUT_5</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,109</td>
<td class="Message">Generating unique operation named: queryByIdUsingGET_5</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,114</td>
<td class="Message">Generating unique operation named: queryPageListUsingGET_4</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,125</td>
<td class="Message">Generating unique operation named: addUsingPOST_6</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,126</td>
<td class="Message">Generating unique operation named: deleteUsingDELETE_6</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,128</td>
<td class="Message">Generating unique operation named: deleteBatchUsingDELETE_6</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,129</td>
<td class="Message">Generating unique operation named: editUsingPUT_6</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,130</td>
<td class="Message">Generating unique operation named: queryByIdUsingGET_6</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,135</td>
<td class="Message">Generating unique operation named: queryPageListUsingGET_5</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,149</td>
<td class="Message">Generating unique operation named: addUsingPOST_7</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,151</td>
<td class="Message">Generating unique operation named: deleteUsingDELETE_7</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,153</td>
<td class="Message">Generating unique operation named: deleteBatchUsingDELETE_7</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,155</td>
<td class="Message">Generating unique operation named: editUsingPUT_7</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,159</td>
<td class="Message">Generating unique operation named: queryByIdUsingGET_7</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:00,172</td>
<td class="Message">Generating unique operation named: queryPageListUsingGET_6</td>
<td class="MethodOfCaller">startingWith</td>
<td class="FileOfCaller">CachingOperationNameGenerator.java</td>
<td class="LineOfCaller">40</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:01,437</td>
<td class="Message">Starting Quartz Scheduler now</td>
<td class="MethodOfCaller">startScheduler</td>
<td class="FileOfCaller">SchedulerFactoryBean.java</td>
<td class="LineOfCaller">727</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:01,916</td>
<td class="Message">ClusterManager: detected 1 failed or restarted instances.</td>
<td class="MethodOfCaller">logWarnIfNonZero</td>
<td class="FileOfCaller">JobStoreSupport.java</td>
<td class="LineOfCaller">3644</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:01,917</td>
<td class="Message">ClusterManager: Scanning for instance &quot;DESKTOP-0SOAGH61615023603155&quot;&#39;s failed in-progress jobs.</td>
<td class="MethodOfCaller">clusterRecover</td>
<td class="FileOfCaller">JobStoreSupport.java</td>
<td class="LineOfCaller">3503</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:02,090</td>
<td class="Message">Scheduler MyScheduler_$_DESKTOP-0SOAGH61615098834640 started.</td>
<td class="MethodOfCaller">start</td>
<td class="FileOfCaller">QuartzScheduler.java</td>
<td class="LineOfCaller">547</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:02,123</td>
<td class="Message">Started JeecgSystemApplication in 29.897 seconds (JVM running for 33.272)</td>
<td class="MethodOfCaller">logStarted</td>
<td class="FileOfCaller">StartupInfoLogger.java</td>
<td class="LineOfCaller">61</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:02,139</td>
<td class="Message">
----------------------------------------------------------
	Application Jeecg-Boot is running! Access URLs:
	Local: 		http://localhost:8080/jeecg-boot/
	External: 	http://192.168.0.102:8080/jeecg-boot/
	Swagger文档: 	http://192.168.0.102:8080/jeecg-boot/doc.html
----------------------------------------------------------</td>
<td class="MethodOfCaller">main</td>
<td class="FileOfCaller">JeecgSystemApplication.java</td>
<td class="LineOfCaller">37</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 14:34:08,195</td>
<td class="Message">【websocket消息】有新的连接，总数为:3</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:31:06,001</td>
<td class="Message">【websocket消息】连接断开，总数为:2</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:31:06,248</td>
<td class="Message">【websocket消息】连接断开，总数为:1</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:31:06,248</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:49:07,320</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:49:26,581</td>
<td class="Message">======获取全部菜单数据=====耗时:192毫秒</td>
<td class="MethodOfCaller">list</td>
<td class="FileOfCaller">SysPermissionController.java</td>
<td class="LineOfCaller">73</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:50:34,910</td>
<td class="Message">======角色授权成功=====耗时:2毫秒</td>
<td class="MethodOfCaller">saveRolePermission</td>
<td class="FileOfCaller">SysPermissionController.java</td>
<td class="LineOfCaller">418</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:50:39,506</td>
<td class="Message">======获取全部菜单数据=====耗时:162毫秒</td>
<td class="MethodOfCaller">list</td>
<td class="FileOfCaller">SysPermissionController.java</td>
<td class="LineOfCaller">73</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:50:47,486</td>
<td class="Message">======获取全部菜单数据=====耗时:99毫秒</td>
<td class="MethodOfCaller">list</td>
<td class="FileOfCaller">SysPermissionController.java</td>
<td class="LineOfCaller">73</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:50:54,773</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:50:58,485</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 15:50:58,771</td>
<td class="Message">======获取全部菜单数据=====耗时:110毫秒</td>
<td class="MethodOfCaller">list</td>
<td class="FileOfCaller">SysPermissionController.java</td>
<td class="LineOfCaller">73</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:05:14,241</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:05:19,147</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:21:59,416</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:22:06,204</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:38:42,767</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:38:50,749</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:39:02,263</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:39:11,222</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:40:29,742</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 16:40:36,265</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 17:50:13,120</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="error odd">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 17:50:21,771</td>
<td class="Message">Servlet.service() for servlet [dispatcherServlet] in context with path [/jeecg-boot] threw exception [org.apache.shiro.authc.AuthenticationException: Token失效，请重新登录] with root cause</td>
<td class="MethodOfCaller">log</td>
<td class="FileOfCaller">DirectJDKLog.java</td>
<td class="LineOfCaller">175</td>
</tr>
<tr><td class="Exception" colspan="6">org.apache.shiro.authc.AuthenticationException: Token失效，请重新登录!
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.jeecg.config.shiro.ShiroRealm.checkUserTokenIsEffect(ShiroRealm.java:127)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.jeecg.config.shiro.ShiroRealm.doGetAuthenticationInfo(ShiroRealm.java:99)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.realm.AuthenticatingRealm.getAuthenticationInfo(AuthenticatingRealm.java:571)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doSingleRealmAuthentication(ModularRealmAuthenticator.java:180)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doAuthenticate(ModularRealmAuthenticator.java:273)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.authc.AbstractAuthenticator.authenticate(AbstractAuthenticator.java:198)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.mgt.AuthenticatingSecurityManager.authenticate(AuthenticatingSecurityManager.java:106)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.mgt.DefaultSecurityManager.login(DefaultSecurityManager.java:275)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.DelegatingSubject.login(DelegatingSubject.java:260)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.jeecg.config.shiro.filters.JwtFilter.executeLogin(JwtFilter.java:65)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.jeecg.config.shiro.filters.JwtFilter.isAccessAllowed(JwtFilter.java:43)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.filter.AccessControlFilter.onPreHandle(AccessControlFilter.java:162)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.filter.PathMatchingFilter.isFilterChainContinued(PathMatchingFilter.java:214)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.filter.PathMatchingFilter.preHandle(PathMatchingFilter.java:189)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.jeecg.config.shiro.filters.JwtFilter.preHandle(JwtFilter.java:95)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:131)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:92)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.github.xiaoymin.knife4j.spring.filter.ProductionSecurityFilter.doFilter(ProductionSecurityFilter.java:53)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.github.xiaoymin.knife4j.spring.filter.SecurityBasicAuthFilter.doFilter(SecurityBasicAuthFilter.java:90)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:88)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:748)
</td></tr>
<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 17:50:25,503</td>
<td class="Message"> 用户名:  管理员,退出成功！ </td>
<td class="MethodOfCaller">logout</td>
<td class="FileOfCaller">LoginController.java</td>
<td class="LineOfCaller">139</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 17:50:41,604</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 17:55:08,199</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 17:55:15,296</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 18:05:50,738</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 18:05:56,450</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 18:39:42,773</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 18:47:29,452</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 18:53:37,606</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 18:53:43,215</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:00:53,879</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:00:58,487</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:12:09,528</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:12:13,827</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:27:14,033</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:27:21,129</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:31:14,713</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:31:19,911</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:50:41,898</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 19:50:51,878</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:07:01,029</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:07:08,026</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:07:46,911</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:07:57,104</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:09:44,438</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:09:56,834</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:18:33,197</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:18:40,645</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:20:35,441</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:20:40,533</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:34:01,043</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:34:05,733</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:47:44,156</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:47:49,011</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:49:44,104</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 20:49:48,627</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 21:24:53,093</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 21:24:59,206</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>

<tr class="error even">
<td class="Level">ERROR</td>
<td class="Date">2021-03-07 21:27:23,606</td>
<td class="Message">java.io.IOException: 你的主机中的软件中止了一个已建立的连接。</td>
<td class="MethodOfCaller">handleException</td>
<td class="FileOfCaller">JeecgBootExceptionHandler.java</td>
<td class="LineOfCaller">57</td>
</tr>
<tr><td class="Exception" colspan="6">org.apache.catalina.connector.ClientAbortException: java.io.IOException: 你的主机中的软件中止了一个已建立的连接。
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:309)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:272)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:105)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:277)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:181)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:82)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:123)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:92)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.github.xiaoymin.knife4j.spring.filter.ProductionSecurityFilter.doFilter(ProductionSecurityFilter.java:53)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.github.xiaoymin.knife4j.spring.filter.SecurityBasicAuthFilter.doFilter(SecurityBasicAuthFilter.java:90)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:88)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:748)
<br />Caused by: java.io.IOException: 你的主机中的软件中止了一个已建立的连接。
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.SocketDispatcher.write0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.IOUtil.write(IOUtil.java:65)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:138)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:152)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1253)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:764)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:717)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:707)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:572)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:157)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.filters.GzipOutputFilter.flush(GzipOutputFilter.java:104)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:220)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1195)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:399)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.Response.action(Response.java:209)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:305)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 89 common frames omitted
</td></tr>
<tr class="warn odd">
<td class="Level">WARN</td>
<td class="Date">2021-03-07 21:27:23,917</td>
<td class="Message">Failure in @ExceptionHandler org.jeecg.common.exception.JeecgBootExceptionHandler#handleException(Exception)</td>
<td class="MethodOfCaller">doResolveHandlerMethodException</td>
<td class="FileOfCaller">ExceptionHandlerExceptionResolver.java</td>
<td class="LineOfCaller">414</td>
</tr>
<tr><td class="Exception" colspan="6">org.apache.catalina.connector.ClientAbortException: java.io.IOException: 你的主机中的软件中止了一个已建立的连接。
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:309)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:272)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1176)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:1008)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:342)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:104)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:277)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:181)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:82)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:123)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver.doResolveHandlerMethodException(ExceptionHandlerExceptionResolver.java:403)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.handler.AbstractHandlerMethodExceptionResolver.doResolveException(AbstractHandlerMethodExceptionResolver.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(AbstractHandlerExceptionResolver.java:141)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.handler.HandlerExceptionResolverComposite.resolveException(HandlerExceptionResolverComposite.java:80)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.processHandlerException(DispatcherServlet.java:1300)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1111)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:92)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.github.xiaoymin.knife4j.spring.filter.ProductionSecurityFilter.doFilter(ProductionSecurityFilter.java:53)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.github.xiaoymin.knife4j.spring.filter.SecurityBasicAuthFilter.doFilter(SecurityBasicAuthFilter.java:90)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:88)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:748)
<br />Caused by: java.io.IOException: 你的主机中的软件中止了一个已建立的连接。
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.SocketDispatcher.write0(Native Method)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.IOUtil.write(IOUtil.java:65)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:138)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:152)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1253)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:764)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:717)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:707)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:572)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:157)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.filters.GzipOutputFilter.flush(GzipOutputFilter.java:104)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:220)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1195)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:399)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.coyote.Response.action(Response.java:209)
<br />&nbsp;&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:305)
<br />&nbsp;&nbsp;&nbsp;&nbsp;	... 95 common frames omitted
</td></tr>
<tr class="info even">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 21:32:38,269</td>
<td class="Message">【websocket消息】连接断开，总数为:0</td>
<td class="MethodOfCaller">onClose</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">67</td>
</tr>

<tr class="info odd">
<td class="Level">INFO</td>
<td class="Date">2021-03-07 21:32:42,010</td>
<td class="Message">【websocket消息】有新的连接，总数为:1</td>
<td class="MethodOfCaller">onOpen</td>
<td class="FileOfCaller">WebSocket.java</td>
<td class="LineOfCaller">57</td>
</tr>
</table>
</body></html>